!function(a){"use strict";function b(a){function b(){}function e(){return!1}function f(a,b){var c,d;for(c in b)if(b.hasOwnProperty(c)){switch(d=b[c],c){case"height":case"width":case"marginLeft":case"marginTop":d+="px"}a.style[c]=d}return a}function g(a,b){var c;for(c in b)a[c]=b[c];return a}function h(a,b){return function(){return a.apply(b,Array.prototype.slice.call(arguments))}}function i(b,c){var d;return d=a?a(c).find("."+b):Array.prototype.slice.call(c.getElementsByClassName(b))}function j(b,c,d,e,g){var h={};h[c]=d,a?a(b).animate(h,e,g):f(b,h)}function k(a){var b=a.touches,c=b&&b.length?b:a.changedTouches;return{x:p?c[0].pageX:a.pageX,y:p?c[0].pageY:a.pageY}}function l(a,b){var d=g({},o);this.settings=g(d,b),this.container=a,this.pageContainer=c.createElement("div"),this.scrollBorder={x:0,y:0},this.page=0,this.preventScroll=!1,this.pageCssProperties={margin:0},this._onStart=h(this._onStart,this),this._onMove=h(this._onMove,this),this._onEnd=h(this._onEnd,this),this._onKeydown=h(this._onKeydown,this),this._sizePages=h(this._sizePages,this),this._afterScrollTransform=h(this._afterScrollTransform,this),this.pageContainer.innerHTML=a.cloneNode(!0).innerHTML,a.innerHTML="",a.appendChild(this.pageContainer),this._scroll=x?this._scrollWithTransform:this._scrollWithoutTransform,this._animateScroll=x?this._animateScrollWithTransform:this._animateScrollWithoutTransform,f(a,v),setTimeout(h(function(){this.updateInstance(b),this.settings.preventDrag||this._observe(),this.settings.afterInitialize.call(this)},this),10)}function m(b,c,d){a?a(b).on(c,d):b.addEventListener(c,d,!1)}function n(b,c,d){a?a(b).off(c,d):b.removeEventListener(c,d,!1)}var o={pageClass:"dragend-page",direction:"horizontal",minDragDistance:"40",onSwipeStart:b,onSwipeEnd:b,onDragStart:b,onDrag:b,onDragEnd:b,afterInitialize:b,keyboardNavigation:!1,stopPropagation:!1,itemsInPage:1,scribe:0,borderBetweenPages:0,duration:300,preventDrag:!1},p="ontouchstart"in d,q=p?"touchstart":"mousedown",r=p?"touchmove":"mousemove",s=p?"touchend":"mouseup",t={37:"left",38:"up",39:"right",40:"down"},u={pages:"No pages found"},v={overflow:"hidden",padding:0},w=function(){var a=c.createElement("div"),b="Khtml Ms O Moz Webkit".split(" "),d=b.length;return function(c){if(c in a.style)return!0;for(c=c.replace(/^[a-z]/,function(a){return a.toUpperCase()});d--;)if(b[d]+c in a.style)return!0;return!1}}(),x=w("transform");return g(l.prototype,{_checkOverscroll:function(a,b,c){var d={x:b,y:c,overscroll:!0};switch(a){case"right":if(!this.scrollBorder.x)return d.x=Math.round((b-this.scrollBorder.x)/5),d;break;case"left":if((this.pagesCount-1)*this.pageDimentions.width<=this.scrollBorder.x)return d.x=Math.round(-((Math.ceil(this.pagesCount)-1)*(this.pageDimentions.width+this.settings.borderBetweenPages))+b/5),d;break;case"down":if(!this.scrollBorder.y)return d.y=Math.round((c-this.scrollBorder.y)/5),d;break;case"up":if((this.pagesCount-1)*this.pageDimentions.height<=this.scrollBorder.y)return d.y=Math.round(-((Math.ceil(this.pagesCount)-1)*(this.pageDimentions.height+this.settings.borderBetweenPages))+c/5),d}return{x:b-this.scrollBorder.x,y:c-this.scrollBorder.y,overscroll:!1}},_observe:function(){m(this.container,q,this._onStart),this.container.onselectstart=e,this.container.ondragstart=e,this.settings.keyboardNavigation&&m(c.body,"keydown",this._onKeydown),m(d,"resize",this._sizePages)},_onStart:function(a){a=a.originalEvent||a,this.settings.stopPropagation&&a.stopPropagation(),m(c.body,r,this._onMove),m(c.body,s,this._onEnd),this.startCoords=k(a),this.settings.onDragStart.call(this,a)},_onMove:function(a){if(a=a.originalEvent||a,!(a.touches&&a.touches.length>1||a.scale&&1!==a.scale)){a.preventDefault(),this.settings.stopPropagation&&a.stopPropagation();var b=this._parseEvent(a),c=this._checkOverscroll(b.direction,-b.distanceX,-b.distanceY);this.settings.onDrag.call(this,this.activeElement,b,c.overscroll,a),this.preventScroll||this._scroll(c)}},_onEnd:function(a){a=a.originalEvent||a,this.settings.stopPropagation&&a.stopPropagation();var b=this._parseEvent(a);this.startCoords={x:0,y:0},Math.abs(b.distanceX)>this.settings.minDragDistance||Math.abs(b.distanceY)>this.settings.minDragDistance?this.swipe(b.direction):(b.distanceX>0||b.distanceX>0)&&this._scrollToPage(),this.settings.onDragEnd.call(this,this.container,this.activeElement,this.page,a),n(c.body,r,this._onMove),n(c.body,s,this._onEnd)},_parseEvent:function(a){var b=k(a),c=this.startCoords.x-b.x,d=this.startCoords.y-b.y;return this._addDistanceValues(c,d)},_addDistanceValues:function(a,b){var c={distanceX:0,distanceY:0};return"horizontal"===this.settings.direction?(c.distanceX=a,c.direction=a>0?"left":"right"):(c.distanceY=b,c.direction=b>0?"up":"down"),c},_onKeydown:function(a){var b=t[a.keyCode];b&&this._scrollToPage(b)},_setHorizontalContainerCssValues:function(){g(this.pageCssProperties,{cssFloat:"left",overflowY:"auto",overflowX:"hidden",padding:0,display:"block"}),f(this.pageContainer,{overflow:"hidden",width:(this.pageDimentions.width+this.settings.borderBetweenPages)*this.pagesCount,boxSizing:"content-box","-webkit-backface-visibility":"hidden","-webkit-perspective":1e3,margin:0,padding:0})},_setVerticalContainerCssValues:function(){g(this.pageCssProperties,{overflow:"hidden",padding:0,display:"block"}),f(this.pageContainer,{"padding-bottom":this.settings.scribe,boxSizing:"content-box","-webkit-backface-visibility":"hidden","-webkit-perspective":1e3,margin:0})},setContainerCssValues:function(){"horizontal"===this.settings.direction?this._setHorizontalContainerCssValues():this._setVerticalContainerCssValues()},_setPageDimentions:function(){var a=this.container.offsetWidth,b=this.container.offsetHeight;"horizontal"===this.settings.direction?a-=parseInt(this.settings.scribe,10):b-=parseInt(this.settings.scribe,10),this.pageDimentions={width:a,height:b}},_sizePages:function(){var a=this.pages.length;this._setPageDimentions(),this.setContainerCssValues(),"horizontal"===this.settings.direction?g(this.pageCssProperties,{height:this.pageDimentions.height,width:this.pageDimentions.width/this.settings.itemsInPage}):g(this.pageCssProperties,{height:this.pageDimentions.height/this.settings.itemsInPage,width:this.pageDimentions.width});for(var b=0;a>b;b++)f(this.pages[b],this.pageCssProperties);this._jumpToPage("page",this.page)},_calcNewPage:function(a,b){var c=this.settings.borderBetweenPages,d=this.pageDimentions.height,e=this.pageDimentions.width,f=this.page;switch(a){case"up":f<this.pagesCount-1&&(this.scrollBorder.y=this.scrollBorder.y+d+c,this.page++);break;case"down":f>0&&(this.scrollBorder.y=this.scrollBorder.y-d-c,this.page--);break;case"left":f<this.pagesCount-1&&(this.scrollBorder.x=this.scrollBorder.x+e+c,this.page++);break;case"right":f>0&&(this.scrollBorder.x=this.scrollBorder.x-e-c,this.page--);break;case"page":switch(this.settings.direction){case"horizontal":this.scrollBorder.x=(e+c)*b;break;case"vertical":this.scrollBorder.y=(d+c)*b}this.page=b;break;default:this.scrollBorder.y=0,this.scrollBorder.x=0,this.page=0}},_onSwipeEnd:function(){this.preventScroll=!1,this.activeElement=this.pages[this.page*this.settings.itemsInPage],this.settings.onSwipeEnd.call(this,this.container,this.activeElement,this.page)},_jumpToPage:function(a,b){a&&this._calcNewPage(a,b),this._scroll({x:-this.scrollBorder.x,y:-this.scrollBorder.y})},_scrollToPage:function(a,b){this.preventScroll=!0,a&&this._calcNewPage(a,b),this._animateScroll()},_scrollWithTransform:function(a){var b="horizontal"===this.settings.direction?"translateX("+a.x+"px)":"translateY("+a.y+"px)";f(this.pageContainer,{"-webkit-transform":b,"-moz-transform":b,"-ms-transform":b,"-o-transform":b,transform:b})},_animateScrollWithTransform:function(){var a="transform "+this.settings.duration+"ms ease-out",b=(this.container,this._afterScrollTransform);f(this.pageContainer,{"-webkit-transition":"-webkit-"+a,"-moz-transition":"-moz-"+a,"-ms-transition":"-ms-"+a,"-o-transition":"-o-"+a,transition:a}),this._scroll({x:-this.scrollBorder.x,y:-this.scrollBorder.y}),m(this.container,"webkitTransitionEnd",b),m(this.container,"oTransitionEnd",b),m(this.container,"transitionend",b),m(this.container,"transitionEnd",b)},_afterScrollTransform:function(){var a=this.container,b=this._afterScrollTransform;this._onSwipeEnd(),n(a,"webkitTransitionEnd",b),n(a,"oTransitionEnd",b),n(a,"transitionend",b),n(a,"transitionEnd",b),f(this.pageContainer,{"-webkit-transition":"","-moz-transition":"","-ms-transition":"","-o-transition":"",transition:""})},_scrollWithoutTransform:function(a){var b="horizontal"===this.settings.direction?{marginLeft:a.x}:{marginTop:a.y};f(this.pageContainer,b)},_animateScrollWithoutTransform:function(){var a="horizontal"===this.settings.direction?"marginLeft":"marginTop",b="horizontal"===this.settings.direction?-this.scrollBorder.x:-this.scrollBorder.y;j(this.pageContainer,a,b,this.settings.duration,h(this._onSwipeEnd,this))},swipe:function(a){this.settings.onSwipeStart.call(this,this.container,this.activeElement,this.page),this._scrollToPage(a)},updateInstance:function(a){if(a=a||{},"object"==typeof a&&g(this.settings,a),this.pages=i(this.settings.pageClass,this.pageContainer),!this.pages.length)throw new Error(u.pages);this.pagesCount=this.pages.length/this.settings.itemsInPage,this.activeElement=this.pages[this.page*this.settings.itemsInPage],this._sizePages(),this.settings.jumpToPage&&(this.jumpToPage(a.jumpToPage),delete this.settings.jumpToPage),this.settings.scrollToPage&&(this.scrollToPage(this.settings.scrollToPage),delete this.settings.scrollToPage),this.settings.destroy&&(this.destroy(),delete this.settings.destroy)},destroy:function(){var a=this.container;n(a,q),n(a,r),n(a,s),n(c.body,"keydown",this._onKeydown),n(d,"resize",this._sizePages),a.removeAttribute("style");for(var b=0;b<this.pages.length;b++)this.pages[b].removeAttribute("style");a.innerHTML=this.pageContainer.innerHTML},scrollToPage:function(a){this._scrollToPage("page",a-1)},jumpToPage:function(a){this._jumpToPage("page",a-1)}}),a&&(a.fn.dragend=function(b){return b=b||{},this.each(function(){var c=a(this).data("dragend");c?c.updateInstance(b):(c=new l(this,b),a(this).data("dragend",c)),"string"==typeof b&&c.swipe(b)}),this}),l}var c=document,d=a;"function"==typeof define&&"object"==typeof define.amd&&define.amd?define(function(){return b(d.jQuery||d.Zepto)}):d.Dragend=b(d.jQuery||d.Zepto)}(window);